PDWs...and other small arms.

[Variable]

Since Variable has been shooting a similar short-barrel carbine in 6.5 Grendel for some time, it would seem like a suitable option for a military PDW.

Yep, and it still is my personal PDW. I have a Colt Commando, M11, a suppressed SBR PS90, we have MP5's at work, have shot P90's, etc., etc., etc., but my 10.5" is my go to rig period. Sound pressure, and blast: You betcha. Mine keeps the can on always.

If someone redesigned the P90 envelope to incorporate the 6.5 Grendel cartridge, I'd sit up and get pretty excited about that one....

Overpenetration in a crowd? GI- use a frangible projectile. LE- use the Sierra 85gr. HP. Problem likely solved, if not use a different projectile. I wonder how well a P90 style magazine would adapt to the Grendel cartridge? A relatively compact bullpup in 6.5 Grendel with a 10.5" or so barrel, a horizontal top mounted mag, etc. would be pretty sweet. The mag (and hence the weapon would be wider), but I'd be willing to make that sacrifice! The controllability would be considerably less in auto, but with a Grendel cartridge you wouldn't need bursts. One well placed hit would be far more decisive. I have SS190 ammo (and some SS191) that is supposed to penetrate k-pots at 200 meters from the P90/PS90, but you wouldn't even need AP to do that with the Grendel cartridge. If 6.5 Grendel AP ever does become available, I bet it'll still do peachy out of a 10.5" tube at PDW distances.... I'd be glad to test that one!

What the heck happened to Colt's "SCW"? I still would like to have one of those too. I wonder how hard it'd be to Grendelize it? I just wish they'd have folded the stock to the right instead of the left if possible...